That pop up which you talk about is the window which appears whenever the game crashes. Some call it getting alpacaed :v cause it usually says that your game crashed and the alpacas are here to help you. I'm not much of a tech guy but the missing text could be cause of various reasons like render device failure or corrupted files or fonts maybe. I'm not sure if you already did this but try running a full check. Can't say much without knowing anything.
On a side note, do you have enough available usable memory? Cause my game easily takes more than 1gb. It could probably be because of that too